Final answer:
The HIM department's mission excludes providing patient care, as it focuses on managing health records, ensuring data security, and supporting legal and regulatory compliance.
Step-by-step explanation:
The option that is NOT a part of the typical Health Information Management (HIM) department's mission and role is c) Providing patient care. HIM departments are primarily concerned with the management of health records, ensuring data security, and supporting legal and regulatory compliance. These are integral to the functioning of healthcare institutions in safeguarding patient privacy and upholding the standards set out by laws such as the Health Insurance Portability and Accountability Act (HIPAA). In contrast, providing patient care is typically the role of healthcare providers like doctors and nurses, not HIM professionals.